<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th>
            <input type="checkbox" v-model="allCheck" /> <span>全选</span>
          </th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <tr
          is="GoodList"
          v-for="(obj, index) in goodList"
          :key="index"
          :obj="obj"
          :index="index"
          :goodList="goodList"
        ></tr>
      </tbody>
      <tfoot>
        <tr is="Total" :goodList="goodList"></tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import GoodList from '@/components/GoodList.vue'
import Total from '@/components/Total.vue'
export default {
  data() {
    return {
      goodList: [
        {
          name: '诸葛亮',
          price: 1000,
          num: 1,
          checked: false,
        },
        {
          name: '蔡文姬',
          price: 1500,
          num: 1,
          checked: false,
        },
        {
          name: '妲己',
          price: 2000,
          num: 1,
          checked: false,
        },
        {
          name: '鲁班',
          price: 2200,
          num: 1,
          checked: false,
        },
      ],
    }
  },
  components: {
    GoodList,
    Total,
  },
  computed: {
    allCheck: {
      set(val) {
        this.goodList.forEach((item) => (item.checked = val))
      },
      get() {
        return this.goodList.length
          ? this.goodList.every((item) => item.checked)
          : false
      },
    },
  },
}
</script>

<style></style>
